Failure Analysis of a Die for Cold Precision Forging of Bevel Gears

摘要：

The life of bevel gear dies is determined by its stress state mainly.During the forging,thedie teeth fractured and the bottom corner cracked in a few times.Finite Element Analysis (FEA) wasemployed to investigate the reason of failure.The results show that the tip fracture and the bottomcorner crack mainly resulted from excessive tensile stress.In accordance with the FEA results,thenon-plane parting face was changed into plane parting face and the radius of bottom hole wasenlarged.The FEA result proves that the modification can greatly reduce stress concentration and theapplication proves that the modification can effectively solve the premature failure of the die.

关键词： Finite element analysis Gear die Failure Bevel gear

作者: J.S.Jin J.C.Xia X.Y.Wang H.Liu

作者单位: State Key Lab of Material Process and Die&Mould Technology,Huazhong University of Science &Technolog State Key Lab of Material Process and Die&Mould Technology,Huazhong University of Science & Technolo Zhengzhou Research Institute of Mechanical Engineering,Metal forming Division,Zhengzhou,450052,PR Ch

会议类型: 国际会议

会议名称: 2008 International Conference on Advances in Product Development and Reliability(2008年产品开发与可靠性进展国际会议)

会议地点: 成都

会议语种:英文

在线出版日期: 2008-08-04（万方平台首次上网日期，不代表论文的发表时间）